Factorio Forums

Posted: **Sat Oct 25, 2025 10:07 am**

The captive biter spawner is missing from the upgrade planner and it can't be dragged from inventory to the upgrade planner either.

: 10-25-2025, 11-57-16.png (54.5 KiB) Viewed 143 times

This would be very useful for upgrading the quality of the captive nests like you can do with other stuff and an upgrade planner

: 10-25-2025, 11-59-35.png (52.47 KiB) Viewed 143 times

I guess this "not being able to upgrade" mechanic also makes it that you can't ghost (shift place) a higher quality nest over the existing ones.
This means that you can't replace existing nests with higher quality ones with bots if you have an upcycling loop for them.

Posted: **Sat Oct 25, 2025 10:10 am**

Can you even do this manually? I would have thought you'd need to destroy a captive biter spawner if you wanted to place a higher quality one on the same location.

Posted: **Sat Oct 25, 2025 10:33 am**

Hurkyl wrote: Sat Oct 25, 2025 10:10 am Can you even do this manually?

Yeah you can, here's the video:

2025-10-25 12-32-26.mp4: (21.33 MiB) Downloaded 5 times

Posted: **Sat Oct 25, 2025 12:25 pm**

That is intended because robots can not mine the old entity and so it’s not upgradable via robots.

Posted: **Sat Oct 25, 2025 1:16 pm**

Rseding91 wrote: Sat Oct 25, 2025 12:25 pm That is intended because robots can not mine the old entity and so it’s not upgradable via robots.

Even tho the player doesn't have to mine it or destroy it to place a higher quality one over an existing spawner?

Factorio Forums

[2.0.72] Captive biter spawner not upgradable

[2.0.72] Captive biter spawner not upgradable

Re: [2.0.72] Captive biter spawner not upgradable

Re: [2.0.72] Captive biter spawner not upgradable

Re: [2.0.72] Captive biter spawner not upgradable

Re: [2.0.72] Captive biter spawner not upgradable